ZMR series

Issue 6 - April 2007

2

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© Zetex Semiconductors plc 2007

Absolute maximum ratings

Note:

1. The maximum operating input voltage and output current of the device will be governed bythe

maximum power dissipation of the selected package. Maximum package power dissipationis

2. The following data represents pulse test conditions with junction temperatures as indicated

atthe initiation of the test. Continuous operation of the devices with the stated conditions

mightexceed the power dissipation limits of the chosen package.

3. Maximum power dissipation for the SOT23 package, is calculated assuming that the device

ismounted on a ceramic substrate measuring 15 x 15 x 0.6mm.

Input voltage (ZMR25H)

22.5V

ZMR250

20V

(ZMR50H)

25V

ZMR500

20V

Package power dissipation

SOT23 500mW (Note 3)

TO92 600mW

Operating temperature

-55 to 125°C

Storage temperature

-65 to 150°C